EP0339365A3 - Method and circuit arrangement for reducing flimmer in a television receiver - Google Patents

Method and circuit arrangement for reducing flimmer in a television receiver Download PDF

Info

Publication number
EP0339365A3
EP0339365A3 EP19890106470 EP89106470A EP0339365A3 EP 0339365 A3 EP0339365 A3 EP 0339365A3 EP 19890106470 EP19890106470 EP 19890106470 EP 89106470 A EP89106470 A EP 89106470A EP 0339365 A3 EP0339365 A3 EP 0339365A3
Authority
EP
European Patent Office
Prior art keywords
frequency
flicker
line interlace
vertical
television
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890106470
Other languages
German (de)
French (fr)
Other versions
EP0339365A2 (en
EP0339365B1 (en
Inventor
Hartmut Prof. Dr. Ing. Schröder
Gregor Dipl.-Ing. Huerkamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of EP0339365A2 publication Critical patent/EP0339365A2/en
Publication of EP0339365A3 publication Critical patent/EP0339365A3/en
Application granted granted Critical
Publication of EP0339365B1 publication Critical patent/EP0339365B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
    • H04N7/0132—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the field or frame frequency of the incoming video signal being multiplied by a positive integer, e.g. for flicker reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

To improve the picture quality in a television receiver which displays the received television signal in accordance with the line interlace method, frame stores are increasingly used. The remaining system-related flicker disturbances caused by the line interlace method require different signal processing for stationary and moving frame sequences in known flicker reduction processes, in which the receiver switches from flicker-free to motion-correct 100-Hz field repetition rate even with a relatively slight movement. To reduce system-related line flicker disturbances with line interlace reproduction, the signals contained in the frame store are in each case divided by vertical filtering in the television receiver into a vertical high-frequency and low-frequency signal as determined by the position frequency, these signals are differently processed in dependence on movement and the processed high-frequency and low-frequency signals are reproduced with twice the vertical frequency in line interlace. The flicker reduction method according to the invention can be used in all television receivers in which the television signal is reproduced at twice the vertical frequency in line interlace. <IMAGE>
EP89106470A 1988-04-29 1989-04-12 Method and circuit arrangement for reducing flimmer in a television receiver Expired - Lifetime EP0339365B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3814570 1988-04-29
DE3814570A DE3814570A1 (en) 1988-04-29 1988-04-29 METHOD AND CIRCUIT ARRANGEMENT FOR FLIMER REDUCTION IN A TELEVISION RECEIVER

Publications (3)

Publication Number Publication Date
EP0339365A2 EP0339365A2 (en) 1989-11-02
EP0339365A3 true EP0339365A3 (en) 1991-11-21
EP0339365B1 EP0339365B1 (en) 1995-07-05

Family

ID=6353228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106470A Expired - Lifetime EP0339365B1 (en) 1988-04-29 1989-04-12 Method and circuit arrangement for reducing flimmer in a television receiver

Country Status (3)

Country Link
EP (1) EP0339365B1 (en)
AT (1) ATE124831T1 (en)
DE (2) DE3814570A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69114795T2 (en) * 1990-09-03 1996-06-27 Philips Electronics Nv Motion compensated frame rate conversion.
ES2086564T3 (en) * 1992-02-07 1996-07-01 Siemens Ag PROCEDURE AND ARRANGEMENT OF THE CIRCUIT FOR THE REDUCTION OF BLINKING ASSISTED BY THE VECTOR OF MOVEMENT IN A TELEVISION RECEIVER.
DE4327779C1 (en) * 1993-08-18 1994-12-08 Siemens Ag Method and circuit arrangement for a television set for the purpose of reducing flicker
DE4336352C2 (en) * 1993-10-25 2001-12-06 Micronas Munich Gmbh Method and circuit arrangement for reducing flicker in television sets
DE4414173C1 (en) * 1994-04-22 1995-06-14 Siemens Ag Conversion process for video half frame images for display
DE4434728C1 (en) * 1994-09-28 1995-11-02 Siemens Ag Reducing flicker of video signal processing device
DE19505758A1 (en) * 1995-02-20 1996-08-22 Siemens Ag Method and circuit arrangement for flicker reduction for a device for video signal processing
US20030095202A1 (en) * 2001-11-21 2003-05-22 Ferguson Kevin M. Human vision model based slow motion interpolation
JP5219609B2 (en) * 2008-05-01 2013-06-26 キヤノン株式会社 Frame rate conversion apparatus, method and program
JP5219608B2 (en) 2008-05-01 2013-06-26 キヤノン株式会社 Frame rate conversion apparatus, method and program

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257129A1 (en) * 1986-08-29 1988-03-02 ANT Nachrichtentechnik GmbH Process for the reproduction of television signals with improved image quality

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257129A1 (en) * 1986-08-29 1988-03-02 ANT Nachrichtentechnik GmbH Process for the reproduction of television signals with improved image quality

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, Band CE-31, Heft 4, November 1975, Seiten 627-641, IEEE, New York, US; H. SCHRÖDER et al.: "Scanning modes for flicker-free colour TV-reproduction" *
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 288 (E-542)[2735], 17. September 1987; & JP-A-62 86 981 (HITACHI) 21-04-1987 *

Also Published As

Publication number Publication date
DE3814570A1 (en) 1989-11-09
DE58909329D1 (en) 1995-08-10
EP0339365A2 (en) 1989-11-02
ATE124831T1 (en) 1995-07-15
EP0339365B1 (en) 1995-07-05

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